I’m trying to find a timer circuit that you can program to turn off a switch after a set time.If you I could buy it on ebay and you tell me how to program it that would be awesome ps:a segment display would be helpful
How much time? What are you switching...voltage and current? Do you want a timer that you manually turn on (to switch on the output), then times out by itself? Lots of kits and modules out there.
